Iron in PDB 3fdc: Crystal Structure of Avidin

The structure of Crystal Structure of Avidin, PDB code: 3fdc was solved by K.D.Barker, M.H.Sazinsky, A.L.Eckermann, C.Abajian, M.R.Hartings, A.C.Rosenzweig, T.J.Meade, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	30.00 / 3.10
Space group	P 32 2 1
Cell size a, b, c (Å), α, β, γ (°)	74.200, 74.200, 85.820, 90.00, 90.00, 120.00
R / Rfree (%)	25.5 / 33

The binding sites of Iron atom in the Crystal Structure of Avidin (pdb code 3fdc). This binding sites where shown within 5.0 Angstroms radius around Iron atom.
In total only one binding site of Iron was determined in the Crystal Structure of Avidin, PDB code: 3fdc:

Iron binding site 1 out of 1 in the Crystal Structure of Avidin


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 1 of Crystal Structure of Avidin within 5.0Å range: probe atom residue distance (Å) B Occ B:Fe129 b:89.8 occ:1.00 FE1 B:BTF129 0.0 89.8 1.0 C13 B:BTF129 2.1 88.3 1.0 C11 B:BTF129 2.1 88.9 1.0 C12 B:BTF129 2.1 90.8 1.0 N1 B:BTF129 2.1 87.6 1.0 C14 B:BTF129 2.1 89.3 1.0 N2 B:BTF129 2.1 88.1 1.0 C4 B:BTF129 3.0 86.5 1.0 C9 B:BTF129 3.0 85.9 1.0 C3 B:BTF129 3.2 86.0 1.0 C10 B:BTF129 3.3 86.7 1.0 N3 B:BTF129 3.4 87.9 1.0 N5 B:BTF129 3.4 86.8 1.0 N4 B:BTF129 3.5 92.5 1.0 N6 B:BTF129 3.5 87.6 1.0 C8 B:BTF129 4.4 83.2 1.0 C5 B:BTF129 4.4 84.8 1.0 C2 B:BTF129 4.6 85.3 1.0 C6 B:BTF129 4.6 84.3 1.0 OG1 B:THR40 4.8 89.3 1.0

K.D.Barker, A.L.Eckermann, M.H.Sazinsky, M.R.Hartings, C.Abajian, D.Georganopoulou, M.A.Ratner, A.C.Rosenzweig, T.J.Meade. Protein Binding and the Electronic Properties of Iron(II) Complexes: An Electrochemical and Optical Investigation of Outer Sphere Effects. Bioconjug.Chem. V. 20 1930 2009.
ISSN: ISSN 1043-1802
PubMed: 19788194
DOI: 10.1021/BC900270A